PetroChina Changqing Oilfield         

    The first  large oil and gas fields in China. The exploration area mainly in ShanGanNing Basin , the exploration of the total area of about 370 thousand square kilometers. The construction of oil and gas exploration and development began in 1970, has found 22 oil and gas fields, including 19 oil fields, the cumulative proved oil and gas geological reserves of 541 million 888 thousand tons (including natural gas proven reserves of 233 billion 8 million cubic meters, equivalent to crude oil reserves, according to equivalent).

Sinopec Gaoqiao Petrochemical                      

       Sinopec of Shanghai Gaoqiao Company (formerly Shanghai Gaoqiao Petrochemical Company, referred to as the "Gaoqiao Petrochemical") is the first major achievements in the reform of the joint reorganization of state-owned enterprise in our country. In November 1981, in order to Comprehensive utilization of resources, energy, improve the economic efficiency of enterprises , the State Council approved “7 industry 1 institute” which  belong to  the petroleum ministry, the Ministry of chemical industry, Ministry of textiles, Ministry of light industry, Ministry of electric power joint reorganization in Shanghai area. Shanghai Gaoqiao Petrochemical company was established after the reform and opening up to the first cross sectoral, cross industry giant petrochemical joint ventures

China Offshore Oil Sales Co., Ltd.         

      China National Offshore Oil Corporation is an extra large state-owned enterprise directly under the state owned assets supervision and Administration Commission of the State Council, and is the largest offshore oil and gas producer in China. The company was founded in 1982 and headquartered in Beijing. Since its inception, China CNOOC maintains a good momentum of development by a simply engaged in the exploitation of oil and gas upstream company, become the highlight the main industry, a complete industrial chain of international energy company.

China Datang          

       China Datang was established  29,12,2002. a large part of the former State Power Corporation enterprises on the basis of the establishment of a wholly state-owned company, is the direct management of the central, is approved by the State Council, the state authorized investment institution and state holding company pilot. The main business scope: All State-owned Assets Management Group Company and the enterprise invested by state formed and owned by group company; in the power energy development, investment, construction, operation and management; electricity (and heat) production and sales.

China Huadian

 

       China Huadian Corporation is one of the five State electric power system reform ,state-owned power generation enterprises, established in the end of 2002.
large central enterprises belong to the SASAC supervision, the main business: production of electricity, heat production and supply; Electricity related coal and other energy development and related professional and technical services

China Huaneng        

     China Huaneng Group was  established and approved by the State Council , state-owned key enterprises, is the state authorized investment institutions and the state holding company's Huaneng building pilot, is the world's top 500 enterprises. Power generation installed capacity of the world's second, Asia's first. In accordance with the requirements of the State Council on the reform of the state power system, China Huaneng Group is an independent business, self financing, in order to operate the power industry, the comprehensive development of corporate entities.